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11 条记录 (耗时 0.015 秒)

    Variable displacement compressor
    1.
    发明授权
    Variable displacement compressor 失效
    可变排量压缩机

    公开(公告)号：US06234763B1

    公开(公告)日：2001-05-22

    申请号：US09443263

    申请日：1999-11-22

    申请人： Masaki Ota ,  Kenta Nishimura ,  Hirotaka Kurakake ,  Taku Adaniya

    发明人： Masaki Ota ,  Kenta Nishimura ,  Hirotaka Kurakake ,  Taku Adaniya

    IPC分类号： F04B126

    CPC分类号： F04B27/1804 ,  F04B2027/1827 ,  F04B2027/1859 ,  F04B2027/1877 ,  F04B2207/0422

    摘要： A variable displacement compressor the displacement of which is externally controlled is provided. The compressor has basically the same structure as prior art compressors except for simple differences. A pressure sensing chamber of a displacement control valve is connected to a suction chamber by an outlet passage. A bellows is located in the pressure sensing chamber. The bellows expands and contracts in accordance with the pressure in the sensing chamber. A valve chamber forms part of a displacement control passage, which is used to control the pressure of a crank chamber. A valve body is located in the valve chamber. The valve body is moved by the bellows to open and close the displacement control passage. Highly pressurized gas from the discharge chamber is supplied to the pressure sensing chamber through an inlet passage. The gas in the pressure sensing chamber is released to the suction chamber through the outlet passage. An electromagnetic valve is located in the outlet passage to regulate the flow of refrigerant gas from the sensing chamber. The outlet passage also includes a bypass passage. The bypass passage bypasses the electromagnetic valve and constantly communicates the pressure sensing chamber with the suction chamber.

    摘要翻译： 提供了一种可变排量压缩机，其位移由外部控制。 除了简单的差异之外，压缩机具有与现有技术的压缩机基本相同的结构。 排量控制阀的压力检测室通过出口通道连接到吸入室。 波纹管位于压力传感室中。 波纹管根据传感室内的压力而膨胀和收缩。 阀室形成位移控制通道的一部分，用于控制曲柄室的压力。 阀体位于阀室中。 阀体通过波纹管移动以打开和关闭位移控制通道。 来自排放室的高压气体通过入口通道供应到压力感测室。 压力检测室中的气体通过出口通道释放到吸入室。 电磁阀位于出口通道中以调节来自感测室的制冷剂气体的流动。 出口通道还包括旁通通道。 旁路通道绕过电磁阀，并将压力传感室与吸入室不断连通。

    Hydraulic power system
    3.
    发明授权
    Hydraulic power system 有权
    液压动力系统

    公开(公告)号：US06748739B1

    公开(公告)日：2004-06-15

    申请号：US10031016

    申请日：2002-01-10

    申请人： Kenichi Hirano ,  Toshio Hashimoto ,  Shiro Hattori ,  Koichi Ohba

    发明人： Kenichi Hirano ,  Toshio Hashimoto ,  Shiro Hattori ,  Koichi Ohba

    IPC分类号： F16D3102

    CPC分类号： F04B49/06 ,  F04B2203/0201 ,  F04B2203/0209 ,  F04B2207/0421 ,  F04B2207/0422

    摘要： A hydraulic power system includes a reversible pump, a variable-speed servomotor for driving the pump, a pressure sensor for detecting load pressure, a detector for detecting the motor speed, signal command units for generating preprogrammed pressure and flow rate commands, a rotational speed controller and a signal processor. The signal processor preferentially outputs a speed command corresponding to the flow rate command by a limiter operation when the difference signal between the pressure command and the pressure detection signal is higher than a predetermined level, whereas it preferentially outputs a speed command corresponding to the difference signal when the difference signal is equal to or lower than said level. The rotational speed controller controls the magnitude of a driving current supplied to the servomotor by a closed loop on the basis of the speed command and the detected signal so that the speed of the servomotor corresponds to the speed command.

    摘要翻译： 液压动力系统包括可逆泵，用于驱动泵的变速伺服电动机，用于检测负载压力的压力传感器，用于检测电动机速度的检测器，用于产生预编程压力和流量命令的信号命令单元，转速 控制器和信号处理器。 当压力指令和压力检测信号之间的差信号高于预定电平时，信号处理器优先通过限制器操作输出与流量指令相对应的速度指令，而优先输出与差信号相对应的速度指令 当差信号等于或低于所述电平时。 旋转速度控制器根据速度指令和检测信号，通过闭环控制提供给伺服电动机的驱动电流的大小，使得伺服电机的速度对应于速度指令。

    Compressor having load control
    7.
    发明授权
    Compressor having load control 失效
    压缩机有负载控制

    公开(公告)号：US06174137B1

    公开(公告)日：2001-01-16

    申请号：US09086576

    申请日：1998-05-29

    申请人： Hajime Nakamura

    发明人： Hajime Nakamura

    IPC分类号： F04B4900

    CPC分类号： F04C28/24 ,  F04B49/08 ,  F04B2205/16 ,  F04B2207/0421 ,  F04B2207/0422 ,  F04B2207/043

    摘要： A compressor adapted to be put into a load operating state when there exists the relation Pd≦PSL between the discharge pressure Pd and a set lower limit of pressure PSL and adapted to be put into an unload operating state when there exists the relation Pd≧PSH between the discharge pressure Pd and a set upper limit of pressure PSH, or when there exists the relation PSL

    摘要翻译： 一种压缩机，当存在排气压力Pd和设定的压力下限PSL之间的关系Pd <= PSL时，当存在关系Pd> Pd时，适于进入卸载运行状态的压缩机， =排出压力Pd和压力PSH的设定上限之间的PSH，或者当排出压力Pd，压力PSH的设定上限和压力PSL的设定下限之间存在PSL = Ts。

    Abnormal condition detecting apparatus and safety apparatus for hydraulic brake boosting system
    8.
    发明授权
    Abnormal condition detecting apparatus and safety apparatus for hydraulic brake boosting system 失效
    液压制动助力系统异常状态检测装置及安全装置

    公开(公告)号：US6132012A

    公开(公告)日：2000-10-17

    申请号：US103937

    申请日：1998-06-25

    申请人： Tomoyuki Ishii

    发明人： Tomoyuki Ishii

    IPC分类号： B60T8/40 ,  B60T8/88 ,  B60T17/22 ,  F04B49/06

    CPC分类号： B60T8/4036 ,  B60T17/221 ,  B60T8/885 ,  F04B49/065 ,  B60T2270/403 ,  F04B2203/0202 ,  F04B2203/0204 ,  F04B2205/063 ,  F04B2205/07 ,  F04B2207/0422 ,  F04B2207/70

    摘要： If a determination is made by a pressure gradient comparison means 24 that gradient of the rise in the pressure in an accumulator calculated by a pressure gradient calculating means 21 and realized during the operation of a pump is lower than a predetermined level, occurrence of an abnormal condition of the pump or a motor is determined. If a pressure gradient comparison means 24 determines that the gradient of pressure depression of the hydraulic pressure in the accumulator realized after the operation of the pump has been interrupted is higher than a predetermined value, occurrence of an abnormal condition which is leakage of solution is determined. If determination of the abnormal condition is sequentially made predetermined number of times, an abnormal-condition deciding means 28 decides occurrence of an abnormal condition, and then produces an output to an alarm-signal generating means 29.

    摘要翻译： 如果通过压力梯度比较装置24确定由压力梯度计算装置21计算并在泵运行期间实现的蓄能器中的压力升高的梯度低于预定水平，则发生异常 确定泵或电动机的状态。 如果压力梯度比较装置24确定在泵运转之后实现的蓄能器中的液压的压力梯度已经被中断，则高于预定值，则确定发生溶液泄漏的异常状况 。 如果异常状态的判断依次为预定次数，则异常判定单元28判定异常状态的发生，然后向报警信号生成单元29输出。

    Fluid pressure source apparatus for providing adequate accumulator pressure during pressure failure
    9.
    发明授权
    Fluid pressure source apparatus for providing adequate accumulator pressure during pressure failure 失效
    用于在压力故障期间提供足够的蓄能器压力的流体压力源装置

    公开(公告)号：US5934880A

    公开(公告)日：1999-08-10

    申请号：US975355

    申请日：1997-11-20

    申请人： Satoshi Yamada ,  Shinsuke Sakane

    发明人： Satoshi Yamada ,  Shinsuke Sakane

    IPC分类号： F04B49/06 ,  B60T8/40 ,  B60T8/94 ,  B60T13/14 ,  B60T17/02 ,  F04B49/08 ,  F04B49/02

    CPC分类号： B60T17/02 ,  B60T13/148 ,  B60T8/4045 ,  B60T8/94 ,  F04B49/08 ,  F04B2205/063 ,  F04B2207/0422

    摘要： A fluid pressure source apparatus has a pump, an accumulator, a pressure switch, and a control device for turning on and off the pump in accordance with the signal from the pressure switch. The control device has a pressure increase control unit. When the pressure detection signal of the pressure switch indicates a high pressure, the pressure increase control unit estimates a pressure reduction N resulting from a fluid pressure consumption by a fluid pressure circuit. If the estimated amount of pressure reduction N exceeds a set value KN=KN1, KN2, the pressure increase control unit drives the pump for a set time KT=KT1, KT2, thereby ensuring a predetermined range of accumulator pressure despite a possible failure of the pressure switch or sensor.

    摘要翻译： 流体压力源装置具有泵，蓄能器，压力开关和用于根据来自压力开关的信号接通和关闭泵的控制装置。 控制装置具有压力增加控制单元。 当压力开关的压力检测信号表示高压时，压力增加控制单元估计由流体压力回路引起的流体压力消耗产生的压力降低N. 如果估计的压力降低量N超过设定值KN = KN1，KN2，则压力增加控制单元驱动泵设定时间KT = KT1，KT2，从而确保蓄压器压力的预定范围，尽管可能的故障 压力开关或传感器。

    Power transmission
    10.
    发明授权
    Power transmission 失效
    电力传输

    公开(公告)号：US5135031A

    公开(公告)日：1992-08-04

    申请号：US769112

    申请日：1991-09-30

    申请人： Roy T. Burgess ,  Rajamouli Gunda ,  Frank Herta ,  Robert C. Hodges ,  James A. Kessler ,  Richard S. Leemhuis ,  Michael R. McCarty ,  Robert W. Stephens

    发明人： Roy T. Burgess ,  Rajamouli Gunda ,  Frank Herta ,  Robert C. Hodges ,  James A. Kessler ,  Richard S. Leemhuis ,  Michael R. McCarty ,  Robert W. Stephens

    IPC分类号： F04B49/06 ,  G05D16/20

    CPC分类号： G05D16/2066 ,  F04B49/065 ,  F04B2201/1201 ,  F04B2201/12051 ,  F04B2205/05 ,  F04B2207/01 ,  F04B2207/0422 ,  Y10T137/86622

    摘要： A rotary hydraulic machine which includes a housing having a shaft mounted for rotation within the housing about a shaft axis. A cylinder block is coupled to the shaft for co-rotation with the shaft within the housing and includes a plurality of cylinders disposed in a circumferential array parallel to and surrounding the shaft axis. A piston is disposed to reciprocate within each of the cylinders and is coupled to a yoke for determining displacement of the pistons within the cylinders. A valve plate is mounted on a valve block and includes kidney-shaped slots for registering with the cylinders as the cylinder block rotates, and thereby connecting the cylinders to pump input and output ports. A microprocessor-based controller is externally mounted on the pump valve block and includes internal memory having various remotely-selectable control programs prestored therein. Sensors responsive to pump operating conditions are connected to the pump control electronics, and include a first sensor responsive to yoke position, a pressure sensor responsive to pump output pressure and a speed sensor responsive to angular velocity of shaft rotation. All of the electronic components are mounted on the valve block.

    摘要翻译： 一种旋转液压机，其包括具有轴的壳体，所述轴安装成用于在所述壳体内围绕轴线旋转。 气缸体联接到轴上，用于与壳体内的轴共同旋转，并且包括多个圆筒，该圆柱体设置成平行于并围绕轴线的周向阵列。 活塞被设置成在每个气缸内往复运动，并且联接到轭，以确定活塞在气缸内的位移。 阀板安装在阀块上，并且在气缸体旋转时包括用于与气缸配准的肾形槽，从而将气缸连接到泵输入和输出端口。 基于微处理器的控制器外部安装在泵阀块上，并且包括其中预先存储有各种可远程选择的控制程序的内部存储器。 响应于泵操作条件的传感器连接到泵控制电子器件，并且包括响应于轭位置的第一传感器，响应于泵输出压力的压力传感器和响应于轴旋转的角速度的速度传感器。 所有电子部件安装在阀块上。